forked from: Coins
/**
* Copyright Achamo ( http://wonderfl.net/user/Achamo )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/nh2T
*/
// forked from miyaoka's Coins
package {
import flash.display.*;
import flash.events.*;
import flash.filters.*;
import flash.geom.*;
import flash.media.Sound;
import flash.net.*;
import flash.system.LoaderContext;
import caurina.transitions.Tweener;
import flash.utils.Timer;
import net.hires.debug.Stats;
import Box2D.Collision.*;
import Box2D.Collision.Shapes.*;
import Box2D.Common.Math.*;
import Box2D.Dynamics.*;
[SWF(width="465", height="465", backgroundColor="0xFFFFFF", frameRate="60")]
public class Box2D_Study extends Sprite {
private var imgs:Array = [];
private var urls:Array =
[
"http://farm3.static.flickr.com/2608/3839475460_66c5e7637e_o.png",
"http://farm4.static.flickr.com/3467/3839485958_a7572aeb61_o.png",
"http://farm3.static.flickr.com/2440/3838696725_a921833d70_o.png",
"http://farm3.static.flickr.com/2650/3839496010_96de330537_o.png",
"http://farm3.static.flickr.com/2444/3839495982_12d0e4ecc8_o.png",
"http://farm3.static.flickr.com/2608/3839475460_66c5e7637e_o.png",
"http://farm3.static.flickr.com/2608/3839475460_66c5e7637e_o.png",
"http://farm4.static.flickr.com/3467/3839485958_a7572aeb61_o.png",
"http://farm3.static.flickr.com/2440/3838696725_a921833d70_o.png",
"http://farm3.static.flickr.com/2650/3839496010_96de330537_o.png",
"http://farm3.static.flickr.com/2444/3839495982_12d0e4ecc8_o.png",
"http://farm3.static.flickr.com/2608/3839475460_66c5e7637e_o.png"
];
private var radiuses:Array = [
//10, 11, 11.75, 10.5, 11.3, 13.25
15, 16, 13.75, 12.5, 15.3, 15.25
];
private var densities:Array = [
2.066947313, 6.488961867, 7.980747225, 7.699105335, 7.038588188, 6.345800508
];
private var coinsThreshold:int = 10;
private var coins:Array = [];
private var sndCoin:Sound = new Sound(new URLRequest(
"http://www.t-p.jp/wonderfl/sound/coin1.mp3"));
private var sndFall:Sound = new Sound(new URLRequest(
"http://www.t-p.jp/wonderfl/sound/coin6.mp3"));
private static const DRAW_SCALE:Number = 100;
private var world:b2World;
public function Box2D_Study() {
//load imgs
var loaded:uint = 0;
for (var i:int = 0; i < urls.length; i++)
{
var loader:Loader = new Loader();
loader.name = i.toString();
loader.contentLoaderInfo.addEventListener(Event.COMPLETE, function (e:Event):void
{
imgs[int(e.target.loader.name)] = e.target.loader.content as Bitmap;
trace(loaded);
if (++loaded == urls.length) init();
});
loader.load(new URLRequest(urls[i]), new LoaderContext(true));
}
}
private function init():void
{
//world
var worldAABB:b2AABB = new b2AABB();
worldAABB.lowerBound.Set(-100, -100);
worldAABB.upperBound.Set(100, 100);
var gravity:b2Vec2 = new b2Vec2(0, 10);
world = new b2World(worldAABB, gravity, true);
//wall
makeWall();
//debug
// debugDraw();
// addChild(new Stats());
//evts
addEventListener(Event.ENTER_FRAME, enterFrameHandler);
var timer:Timer = new Timer(50);
stage.addEventListener(MouseEvent.MOUSE_DOWN, function ():void
{
addCoin();
timer.reset();
timer.start();
stage.addEventListener(MouseEvent.MOUSE_UP, function ():void
{
timer.stop();
});
});
timer.addEventListener(TimerEvent.TIMER, function ():void
{
sndCoin.play();
addCoin();
});
}
private function addCoin():void
{
var i:int = Math.floor(Math.random() * radiuses.length);
addCircle(
mouseX, mouseY,
//radiuses[i] * 4,
radiuses[i] * 3,
densities[i],
imgs[Math.random() < 0.5 ? i * 2 : i * 2 + 1] as Bitmap );
}
private function debugDraw():void
{
var debugDraw:b2DebugDraw = new b2DebugDraw();
debugDraw.m_sprite = this;
debugDraw.m_drawScale = DRAW_SCALE;
debugDraw.m_fillAlpha = 0.3;
debugDraw.m_lineThickness = 1;
debugDraw.m_drawFlags = b2DebugDraw.e_shapeBit | b2DebugDraw.e_jointBit;
world.SetDebugDraw(debugDraw);
}
private function makeWall():void {
var bd:b2BodyDef = new b2BodyDef();
bd.position.Set(0, 0);
var wall:b2Body = world.CreateBody(bd);
var w:Number = stage.stageWidth / DRAW_SCALE;
var h:Number = stage.stageHeight / DRAW_SCALE;
var wallSize:Number = 50 / DRAW_SCALE;
var sd:b2PolygonDef = new b2PolygonDef();
sd.filter.categoryBits = parseInt("010",2);
//top
sd.SetAsOrientedBox(w / 2 + wallSize * 2, wallSize, new b2Vec2(w / 2, -wallSize - h/2));
wall.CreateShape(sd);
//bottom
sd.SetAsOrientedBox(w / 2 + wallSize * 2, wallSize, new b2Vec2(w / 2, h + wallSize));
wall.CreateShape(sd);
//left
sd.SetAsOrientedBox(wallSize, h, new b2Vec2(-wallSize, h / 2));
wall.CreateShape(sd);
//right
sd.SetAsOrientedBox(wallSize, h, new b2Vec2(w + wallSize, h / 2));
wall.CreateShape(sd);
}
private function enterFrameHandler(event:Event):void {
for (var b:b2Body = world.GetBodyList(); b; b = b.GetNext()) {
if (b.GetUserData() is Sprite) {
if (b.GetWorldCenter().y *DRAW_SCALE > 500)
{
removeChild(b.GetUserData());
world.DestroyBody(b);
}
else
{
b.GetUserData().x = b.GetWorldCenter().x * DRAW_SCALE;
b.GetUserData().y = b.GetWorldCenter().y * DRAW_SCALE;
b.GetUserData().rotation = b.GetAngle() * 180 / Math.PI;
}
}
}
if (coinsThreshold < coins.length)
{
sndFall.play();
var coinsLeft:int = coinsThreshold * Math.random() * 0.5;
coinsThreshold = Math.random() * 10 + 20;
while(coinsLeft < coins.length)
{
var b1:b2Body = coins.shift() as b2Body;
var sp:b2Shape = b1.GetShapeList();
var f:b2FilterData = new b2FilterData();
f.maskBits = parseInt("001",2);
sp.SetFilterData(f);
world.Refilter(sp);
}
}
world.Step(1 / stage.frameRate, 10);
}
private function addCircle(posX:Number , posY:Number, radius:Number, density:Number, bmpSource:Bitmap):void
{
//body def
var bd:b2BodyDef = new b2BodyDef();
bd.position.Set(posX / DRAW_SCALE, posY / DRAW_SCALE);
//shape def
var sd:b2CircleDef = new b2CircleDef();
sd.radius = radius / DRAW_SCALE;
sd.density = density;
sd.restitution = 0.5;
var bmp:Bitmap = new Bitmap(bmpSource.bitmapData.clone());
bmp.smoothing = true;
//img
bmp.width =
bmp.height = radius * 2;
bmp.x =
bmp.y = -radius;
//body
var body:b2Body = world.CreateBody(bd);
body.CreateShape(sd);
body.SetMassFromShapes();
body.m_userData = new Sprite();
body.GetUserData().x = body.GetWorldCenter().x * DRAW_SCALE;
body.GetUserData().y = body.GetWorldCenter().y * DRAW_SCALE;
body.GetUserData().addChild(bmp);
coins.push(body);
addChild(body.GetUserData());
}
}
}